2 checkbox en una misma línea

SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN: COMMENT 23(22) text-062, POSITION 20.
PARAMETERS: v_cm_mod AS CHECKBOX.

SELECTION-SCREEN: COMMENT 53(24) text-063, POSITION 50.
PARAMETERS: v_cm_sld AS CHECKBOX.
SELECTION-SCREEN END OF LINE.